Coffee machine



FIG. 1 is a top plan view of a coffee machine showing my new design;.

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

Features shown in broken lines show environmental structure and form no part of the claimed design. 

The design for coffee machine, substantially as shown in the accompanying drawings. 